Cultivating machine



May 30, 1933. A] B z 1,911,877 I CULTIVATING MACHINE Filed May 28, 1950s Sheets-Sheet 1 May 30, 1933. A. BENITEZ CULTIVATING MACHINE Filed May28, 1950 5 Sheets-Sheet 2 May 30, 1933. A. BENITEZ CULTIVATING MACHINEFiled May 28, 1950 5 Sheets-Sheet 3 Patented May 30, 1933 UNITED STATEStartan ANTONIO BENITEZ, OF CRISTO, C'UBA CULTIVATING MACHINE Applicationfiled May 28, 1930, Serial No. 456,690, and in Cuba April 28, 1930.

This invention relates to improvements in cultivating machines, theobject of the invention being to provide an improved ma chine of thiskind which is simple in construction, is strong and durable, isadjustable in width to accommodate itself to the width of spaces betweenthe rows of growing crops and which is not likely to get out of order.

\Vith the above and other objects in view,

the invention consists in the construction, combination and arrangementof devices hereinafter described and claimed.

The invention is described with reference to the figures of the annexeddrawings, of

which Fig. l is a plan of a cultivating machine constructed inaccordance with this invention.

Fig. 2 is a side elevation of the same.

Fig. 3 is a detail side elevation of the rear portion of the supportingframe of the machine.

Fig. 4 is a detail side elevation of a share and the supporting armcarrying it.

Fig. 5 is a horizontal section on line 5-5 of Fig. 4. 1

Fig. 6 is a vertical transverse cross section on line Ii-23 of Fig. 1.

Fig. 7 is a horizontal section on line z2 of Fig. 2. I

Fig. 8 is a perspective of the mounting of one of the lateral piecessupporting the outer side shares with the adjustable arm connectingit-to a central supporting piece controlling the width of the machine.

My improved cultivating machine comprises a frame which is composed oftwo lateral bars C joined by a rear bolster C,

the front end portions of the lateral bars C being slightly bentinwardly and each having a longitudinal slot a. A longitudinal centralbar B has its rear end bent at right angles and secured by means of apair of bolts Z) to the rear bolster C and its front end has an upwardlydirected hook B in the end portion of which is pivotally mounted a ringH for the attachment of a draft animal, said bar B extending at itsforward portion through an attaching member .bar B by means of bolts 2'.The curved studs 6 arranged in vertical alignment form pivot pins fortwo. lateral bars D the front ends of which form eyes for pivotallymounting the said bars on'the studs eand the front half of each lateralbar D has approximately the shape-of a quarter of circle and isadjustably connected to the front end of one of the lateral bars bymeans of a pair of bolts (Z passing through" the slot at of said lateralbar." The rear half of each lateral bar D has-an outwardly bentextension the rear portionof which is substantially parallel to andspaced from one of the lateral bars C.-

At a downwardly bent portion of the longitudinal central bar Bconnecting the hook B to said bar B are secured by means of bolts, twohanging brackets F provided P with a series of openings to permitadjustment of their position relatively to the central bar B, and inbearings at the ends of said brackets there is rotatably mounted theshaft of a guiding wheel G, which bears upon the ground and is made of asingle'steel' casting piece and has thick spokes.

The frame carries five shares L one. of which is suported by a hangingbracket K secured by means of bolts to the central bar B at a point infront of theconnections of the bars D'to the bars C; two being supportedby hanging brackets'K secured by means of bolts to the rearendsof-the'lateral bars C, and the others being supported 9 withvertical flanges secured to the central portion of each member I has anopening through which passes a bolt which serves to fix to the same aconnecting arm J which is provided with a series of openings to 5 enablean adjustable connection of said arnr to be effected to the members I.The other end of each arm J is pivotally connected by means of a bolt toa square piece M which by its vertical portion is secured to one side ofthe bracket K of the corresponding outer side share L by means of thesame bolts which secure said bracket K to the extension of theassociated lateral bar D.

Behind the point of attachment of the central forward share L on thecentral bar B front ends of plough handles A- are attached, as at a. Thesaid plough handles are connected together by a horizontal transversebrace P, and each of the plough handles is connected by a connecting barat a point near its center to the adjacent lateral bar C,- and throughanother similar connecting bar N each of the plough handles is connectedto the member I of the same side through the same bolt which secures tothe latter piece the connecting bar J. The plough handles A are henceeffectually braced.

The outer shares L mounted 011 the extensions of the lateral bars D canbe opened to aspace of about 52 inches between them and closed to about30'inches, according to the width of the spaces between the rows. Toeffect such adjustment it will be only necessary to change the pivotalconnection point of each one. of the connecting bars J to the member Iat the same side, and to vlaterally adjust the members D, as will beunderstood.

40 What I claim is:

A cultivator having a frame comprising a pair of side bars havinginwardly curved front ends, a rear cross bar connecting the side bars, acenter bar secured to and eX- tending forwardly from the rear cross bar,and attaching member adjustable longitudinally on the center bar,lateral bars on the outer sides of the side bars having curvedintermediate portions longitudinally adjustably secured to the curvedfront ends of the side bars and having their front ends 'pivotallyconnected to the said adjustable attaching member, said side bars,center bar and lateral bars having means for the attachment ofcultivator blades thereto, attaching members secured to and extendinglaterally from opposite sides of the center bar, and connecting armssecured to the lateral bars and adjustably secured to said attachingmembers.

In witness whereof I aflix my signature.

ANTONIO BENITEZ.

